package com.ccrfid.rmc6.appconfig.jackson;

import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.JsonSerializer;
import com.fasterxml.jackson.databind.SerializerProvider;

import java.io.IOException;
import java.text.DecimalFormat;

public class CustomDouble2Serialize extends JsonSerializer<Double> {
    private DecimalFormat decimalFormat = new DecimalFormat("0.##");
    @Override
    public void serialize(Double value, JsonGenerator gen, SerializerProvider serializers)
            throws IOException, JsonProcessingException {
        if (value != null) {
            gen.writeString(decimalFormat.format(value));
        } else {
            gen.writeNull();
        }
    }
}
